From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter discussing laboratory reports on various oils, specifically castor oil and alcohol mixtures, for use in shock absorbers.
| Identifier | ExFiles\Box 28\1\ Scan114 | |
| Date | 11th January 1928 | |
| ROLLS-ROYCE OF AMERICA, INC. SPRINGFIELD, MASS. X832 OY1.R.1.11.28 January 11th, 1928. Mr. Robotham, Rolls Royce Ltd., Derby, England. Dear Mr. Robotham: RE SHOCK ABSORBERS. In connection with my personal note of January 2nd, the attached is copy of a laboratory report on various oils for use in shock absorbers. Apparently least foaming is with 80% Castor and 20% alcohol. We propose to try this. It is a mixture which is used we understand in other shock absorbers, although we believe the American Houdaille uses glycerine and alcohol. The castor oil alcohol mixtures are also used in Hydraulic braking systems. Very truly yours, Maurice Olley MO/R Encl. Rm{William Robotham - Chief Engineer} Suggest we write OY re our experiments in castor oil. HS{Lord Ernest Hives - Chair} | ||